Biddy is pretty smart. She can sit, stay, come, lay down, jump and high 5. My Tucker is a dumb-dumb and doesn't even understand sit. He's a good boy and doesn't get into too muc trouble, but boy is he hard to train!!
As for your Tucker, I don't know. My friend used to have a Westie that would play dead when you preteded to shoot him. That was pretty cute (plus his name was Rosco). You could teach him to jump through hoops
pr something?